19954915

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{2377}}^1$

素因数の和:2478

約数の個数: 16

約数和(自身を含む): 25339968

約数和(自身を除く): 5385053

約数列:

[1, 5, 23, 73, 115, 365, 1679, 2377, 8395, 11885, 54671, 173521, 273355, 867605, 3990983, 19954915]

約数ペア:

[(1, 19954915), (5, 3990983), (23, 867605), (73, 273355), (115, 173521), (365, 54671), (1679, 11885), (2377, 8395)]